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210 decky 1 
/*
2071 jermar 2 
 * Copyright (c) 2005 Martin Decky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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1734 decky 29 
/** @addtogroup ppc32
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 * @{
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 */
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/** @file
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 */
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#include <config.h>
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#include <arch.h>
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#include <arch/boot/boot.h>
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#include <arch/drivers/cuda.h>
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#include <arch/interrupt.h>
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#include <genarch/fb/fb.h>
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#include <genarch/fb/visuals.h>
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#include <userspace.h>
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#include <proc/uarg.h>
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#include <console/console.h>
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#include <ddi/device.h>
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#include <ddi/irq.h>
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#include <arch/drivers/pic.h>
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#define IRQ_COUNT   64
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1132 decky 51 
bootinfo_t bootinfo;
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void arch_pre_main(void)
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{
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    /* Setup usermode */
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    init.cnt = bootinfo.taskmap.count;
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1780 jermar 58 
    uint32_t i;
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    for (i = 0; i < bootinfo.taskmap.count; i++) {
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        init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr);
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        init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
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    }
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}
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void arch_pre_mm_init(void)
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{
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    /* Initialize dispatch table */
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    interrupt_init();
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    /* Start decrementer */
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    start_decrementer();
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}
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void arch_post_mm_init(void)
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{
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    if (config.cpu_active == 1) {
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        /* Initialize framebuffer */
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        if (bootinfo.screen.addr) {
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            unsigned int visual;
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            switch (bootinfo.screen.bpp) {
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            case 8:
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                visual = VISUAL_INDIRECT_8;
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                break;
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            case 16:
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                visual = VISUAL_RGB_5_5_5;
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                break;
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            case 24:
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                visual = VISUAL_RGB_8_8_8;
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                break;
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            case 32:
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                visual = VISUAL_RGB_0_8_8_8;
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                break;
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            default:
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                panic("Unsupported bits per pixel.");
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            }
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            fb_properties_t prop = {
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                .addr = bootinfo.screen.addr,
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                .offset = 0,
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                .x = bootinfo.screen.width,
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                .y = bootinfo.screen.height,
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                .scan = bootinfo.screen.scanline,
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                .visual = visual,
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            };
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            fb_init(&prop);
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        }
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        /* Initialize IRQ routing */
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        irq_init(IRQ_COUNT, IRQ_COUNT);
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        if (bootinfo.macio.addr) {
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            /* Initialize PIC */
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            pic_init(bootinfo.macio.addr, PAGE_SIZE);
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            /* Initialize I/O controller */
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            cuda_init(device_assign_devno(),
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                bootinfo.macio.addr + 0x16000, 2 * PAGE_SIZE);
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        }
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        /* Merge all zones to 1 big zone */
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        zone_merge_all();
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    }
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}
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void arch_post_cpu_init(void)
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{
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}
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void arch_pre_smp_init(void)
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{
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}
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void arch_post_smp_init(void)
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{
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}
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void calibrate_delay_loop(void)
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{
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}
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void userspace(uspace_arg_t *kernel_uarg)
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{
3672 jermar 144 
    userspace_asm((uintptr_t) kernel_uarg->uspace_uarg,
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        (uintptr_t) kernel_uarg->uspace_stack +
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        THREAD_STACK_SIZE - SP_DELTA,
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        (uintptr_t) kernel_uarg->uspace_entry);
1220 decky 148 
 
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    /* Unreachable */
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    while (true);
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}
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/** Acquire console back for kernel
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 *
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 */
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void arch_grab_console(void)
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{
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    fb_redraw();
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    cuda_grab();
1474 palkovsky 160 
}
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1474 palkovsky 162 
/** Return console to userspace
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 *
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 */
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void arch_release_console(void)
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{
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    cuda_release();
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}
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/** Construct function pointer
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 *
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 * @param fptr   function pointer structure
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 * @param addr   function address
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 * @param caller calling function address
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 *
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 * @return address of the function pointer
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 *
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 */
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void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
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{
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    return addr;
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}
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/** @}
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 */